2211111113131 has 4 divisors (see below), whose sum is σ = 2215907450064. Its totient is φ = 2206314776200.

The previous prime is 2211111113119. The next prime is 2211111113203. The reversal of 2211111113131 is 1313111111122.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2211111113131 - 2²⁵ = 2211077558699 is a prime.

It is a super-2 number, since 2×2211111113131² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2211111113099 and 2211111113108.

It is not an unprimeable number, because it can be changed into a prime (2211111114131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2398167775 + ... + 2398168696.

It is an arithmetic number, because the mean of its divisors is an integer number (553976862516).

Almost surely, 2^{2211111113131} is an apocalyptic number.

2211111113131 is a deficient number, since it is larger than the sum of its proper divisors (4796336933).

2211111113131 is an equidigital number, since it uses as much as digits as its factorization.

2211111113131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4796336932.

The product of its digits is 36, while the sum is 19.

Adding to 2211111113131 its reverse (1313111111122), we get a palindrome (3524222224253).

The spelling of 2211111113131 in words is "two trillion, two hundred eleven billion, one hundred eleven million, one hundred thirteen thousand, one hundred thirty-one".